In the home, condensation occurs when excess moisture vapour within the building condenses on a flat surface below the dew point temperature. Provided there are no building defects that introduce water, good heating and ventilation will control the problem.
It is common for single-story or ground-floor flats to be affected between October and April, which can lead to mould growth and the breakdown of the building fabric.
The Role of Dew Point Temperature:
To accurately determine the dew point, you need to measure two key factors: relative humidity and ambient temperature.
By understanding how these elements interact, homeowners can better manage moisture levels in their properties and reduce the risk of condensation-related issues.
A building normally buffers high humidity, which may temporarily trigger condensation in the home. However, some modern materials reduce their moisture-buffering ability.
To Cure condensation
You must have an inspection to diagnose the cause of the excess water and produce an action plan.
Balanced heating and proper ventilation at water production points will lower your home’s moisture levels.
Health issues
Anyone with a compromised immune system should avoid areas affected by mould growth or dampness. It is not good to sleep in any room affected by mould growth.
Action Plan: It is important to control excessive atmospheric moisture.
To minimise condensation, maintain the ambient temperature above 15 °C and ideally between 18 °C and 21 °C. Avoid heating the property for short periods, as this will reduce its ability to buffer moisture.
Heat and ventilate the production area using a constant-flow extractor fan to remove moisture.
When drying clothes within the building, please keep them in a single room equipped with a clothes-drying dehumidifier.
Check that you have the correct type of extractor fan in the bathroom and kitchen/utility room. Ideally, it should have a continuous run setting with boost and a humidity control sensor (set at 45-60%RH).
Window trickle vents should be kept open to allow fresh air in.
Repair any defects that allow water to penetrate the building fabric or cause plumbing leaks.
Clean the mould on the affected surface and dry the area quickly. Larger affected areas may need professional cleaning. In difficult situations, an anti-mould emulsion paint may be helpful.
Wash all affected clothing at over 50 °C to control mould (check labels for suitability).
Downloaded the Alba Damp Property Consulting Extensive Condensation Guide